In Mollari's quarters, when Vir is delaying Mollari's wives, the door is standing wide open for no reason. When Mollari finally does show up, the door opening sound is heard even though the door was already open, and then it finally shuts.
When Talia is telling Matthew Stoner "I am what I am, Matt," her mouth movements do not match the words.
When Talia tells Matt, "You had something, not we" her lips say "me" instead of "we".
Timov derisively describes Londo and Mariel's actions as "sexual Olympics." Olympics is an Earth name which a Centauri is unlikely to have heard of. Even if Timov has a habit of memorizing esoteric trivia about foreign cultures, it's unlikely to be the first metaphor she would think of.